Company History

1972.9 Founded in Horinouchi-cho, Kitauonuma-gun (currently Uonuma-shi), manufacture of relay coils

1973.10 Established a corporation Capital １,５００,０００ yen Temporary (prefabricated) Construction of own factory － ①

1975.6 Started manufacturing magnetic heads for audio monaural-②

1978.8 Completed the first phase of construction of the Horinouchi Factory-③

1980. 8 Completed the second phase of construction of the Horinouchi Factory

1982. 9 Celebrating the １０th anniversary of our founding, creating a management philosophy

9 Started production of magnetic head for FDD-④

1983.11 Decided to enter the market due to the Mitsuke City Business Attraction Ordinance

1984. 4 Horinouchi Factory From parts to assembly of magnetic heads for VTR images

　　　　　　 Establish an integrated production system

4 Mitsuke Factory Building No. １ (２０００㎡) completed-⑤

1986. 4 Production of magnetic head / core slider processing for HDD started at Mitsuke Factory-⑥

1989. 8 Installed a clean room with a cleanliness level of 10,000 at the Mitsuke Factory (６５０㎡)

1992. 3 Completed the ４th phase construction (１６００㎡) of Horinouchi Factory-⑦

1996. 1 Launched sales of own brand, magnetic head chip for VTR video market-⑧

1997. 6 The Horinouchi Factory and the Mitsuke Factory are merged into the same corporation.

　　　　　　Capitalized at ４１,１５０,０００ yen

6 Start of transactions with overseas customers (start of export business)

2001. 2 Completed Mitsuke Factory Building No. 2 (1600㎡)

2002. 9 Celebrating the ３０th anniversary of our founding

9 Magnetic head chip for VTR video Achieved monthly production of 700 million (world share approx. 25%)

9 Started production of magnetic heads for VTRs in China

2004. 4 ISO 9001: 2000 certification acquired

　10 (Niigata Chuetsu Earthquake occurred: Seismic intensity ７+)

2005. 7 ISO 14001: 2004 certification acquired

2006.10 Merged with Cosmo Parts Co., Ltd. with capital of ４５,１５０,０００ yen

　 10 Start of in-house production of single crystal ferrite material － ⑨

　Started integrated production from materials for VTR video magnetic heads to finished heads

2007.11 Received the Technology Award from the Governor of Niigata Prefecture (Development of Single Crystal Ferrite Material) －⑩

2008. 9 (Lehman shock: global recession)

　 10 Sapphire ingot training and processing business started －⑪

2011. 3 (Great East Japan Earthquake: Seismic intensity ７)

　４ (Niigata / Fukushima heavy rain)

　11 Received the Niigata Governor's Commendation Technology Award (Single Crystal Sapphire Material Development) －⑫

2012.10 Changed the company name of Shinko Electric Co., Ltd. to Sinko Co., Ltd.

2020.10 Selected as a regional future leader-⑬

2021. 1 Selected as a found SDGs partner

2021. 9 Installed solar panels at Mitsuke Factory

2022.12 Mitsuke Factory No.2 building expansion completed (3,600㎡ → 6,800㎡ after expansion) - ⑭

2023. 5 Received the 40th Niigata Prefecture Economic Promotion Award －⑮